Added AI_WONT_RETURN_SUFFIX mainly for Clang's static analyzer.
Added AI_WONT_RETURN_SUFFIX to ReportError().
Added AI_WONT_RETURN and AI_WONT_RETURN_SUFFIX to DOMError.
Merge pull request #66 from sherief/Robustness

Hints for Clang's static analyzer - preventing false positives.
Initialized stride variable to prevent compiler warnings about potential use of unassigned variable.